Schema:
School (School_id, School_name, Location, Mascot, Enrollment, IHSAA_Class, IHSAA_Football_Class, County)
budget (School_id, Year, Budgeted, total_budget_percent_budgeted, Invested, total_budget_percent_invested, Budget_invested_percent)
endowment (endowment_id, School_id, donator_name, amount)
Please answer with SQL.